Product Overview
The ATS17501 is a single IC solution for rotational position sensing in automotive and industrial electric motor applications. It utilizes three Hall elements to provide two independent differential channels, processing inputs with digital circuits and robust algorithms to eliminate offsets and false transitions. The IC offers accurate speed and direction information, with advanced calibration for consistent switch points over varying conditions. It is programmable for various applications, including dual-phase gear speed/position or high-resolution speed/direction, and can be configured for ASIL B(D) Fault Detection mode. The SG package integrates a rare-earth magnetic pellet and a back-biasing magnet for enhanced manufacturing, performance, and reliability.
Product Attributes
- Brand: Allegro MicroSystems
- Material: SG package with integrated rare-earth magnetic pellet, 100% matte-tin-plated lead frame
- Certifications: ASIL B(D) compliant (ISO 26262)
- Package: 4-Pin SIP (suffix SG)
- Lead (Pb) free
Technical Specifications
| Characteristic | Symbol | Min. | Typ. | Max. | Unit | Notes |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC | 4 | 24 | V | Voltage across VCC and GND [5] | |
| Undervoltage Lockout | VCC(UV) | 3.99 | V | |||
| Supply Current | ICC | 10 | 15 | mA | ||
| Operating Ambient Temperature Range | TA | 40 | 160 | C | ||
| Junction Temperature | TJ | 175 | C | |||
| Storage Temperature Range | Tstg | 65 | 170 | C | ||
| Power-On Time | tPO | 1 | ms | Time from VCC > VCC(min) to when sensor IC output is valid | ||
| Output Low Voltage (Fault Detection Mode disabled) | VOUT(LOW) | 0.165 | 0.35 | V | IOUT = 10 mA | |
| Output High Voltage (Fault Detection Mode disabled) | VOUT(HIGH) | VPULLUP | V | |||
| Output Rise Time | tr | 5 | s | 10%90%; VPULLUP = 5 V; RPULLUP = 1 k; CLOAD = 2.2 nF | ||
| Output Fall Time (Fault Detection Mode disabled; Fast fall time option) | tf | 0.5 | s | 90%10% | ||
| Forward Pulse Width | tw(FWD) | 38 | 45 | 52 | s | |
| Reverse Pulse Width | tw(REV) | 76 | 90 | 104 | s | |
| Propagation Delay | td | 8 | s | Delay from the magnetic signal crossing a switch point threshold to the start of the output transition | ||
| Jitter (BDIFF(pk-pk) = 100 G) | 0.13 | target degrees | 6; sinusoidal input signal; fOP = 1 kHz |
2401220954_ALLEGRO-ATS17501PSGATN-VDFUYJ_C19762047.pdf
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